University of Minnesota
Reading performance in patients with Central Vision Loss will be measured with and without missing text being remapped to different parts of the visual field in a variety of different reading tasks.
Following initial characterization of their visual field loss, the participant's performance in various reading tasks will be measured with and without remapping. Tasks will include reading simple sentences, reading popular fiction, reading text with one word presented at a time (rapid serial visual presentation, RSVP), and reading text in simulated real-world environments in virtual reality (e.g. subway station, school, city street). Different remapping strategies, e.g. mainly shifting the text horizontally, or vertically, will be tested. Participants interested in the study will be brought…
Inclusion Criteria: * Dense bilateral scotomas of at least 2 deg diameter in each eye covering the fovea * Bivariate contour ellipse area (BCEA) of less than 10\^2 is obtained in a simple fixation task Exclusion Criteria: * Neovascular AMD * Any history of visual disorders other than that causing the central vision loss.
Participants will receive training across multiple days with text being shifted in real time as it is being read from locations covered by scotoma to locations determined by personalization procedure .
Participants will read one word at a time presented in rapid succession at fixation with text being shifted from scotoma locations to locations determined by personalization procedure.
Participants will read short texts presented in natural scenes in virtual reality with text being shifted from scotoma locations to locations determined by personalization procedure.
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